Filing-replenishing loom.



No. 754,024. PATENTED MAR. 8, 1904. E. S. STIMPSON.

FILLING REPLENISHING LOOM.

APPLICATION FILED DBO. 14, 1903.

N0 MODEL. 2 SHEETS-SHEET 1.

No. 754,024. PATENTED MAR. 8,1904.

E. S. STIMPSON. FILLING REPLENISHING LOOM.

APPLICATION FILED DEOQ14, 1 903.

HO MODEL. 2 SHBETS-SHEBT Z.

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UNITED STATES Patented March 8, 1904.

PATENT OFFICE.

EDWARD S. STIMPSON, OF HOPEDALE, MASSACHUSETTS, 'ASSIGNOR .TO

DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORA- TION OF MAINE.

FlLLlNG-REPLENISHING LOOM.

SPECIFICATION forming part of Letters Patent No. 754,024 dated March 8,1904.

Application filed December 14:, 1903. Serial No. 185,028. (No model.) i

To all whom it may concern.-

Be it known that I, EDWARD S. STIM'PSON, a citizen of the United States,and a resident of Hopedale, county of Worcester, State of Massachusetts,have invented an Improvement in Automatic Filling-Replenishing Looms, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawingsrepresenting like parts. 7

This invention relates to looms provided with mechanism to automaticallyreplenish the running-shuttle with filling.

If after replenishment the shuttle fails to thread properly, a secondoperation of the replenishing mechanism is automatically efl'ected, andordinarily the shuttle then threads properly. Should the shuttle againfail to thread, however, it is desirable to stop the loom in order toavoid unnecessary emptying of the filling feeder or hopper and uselessoperations of the filling-replenishing mechanism. Automatic looms ofthis character have been heretofore constructed to automatically stopthe loom after a predetermined number of successive operations of thereplenishing mechanism, such a loom forming the subjectmatter of UnitedStates Patent No. 7 27,014, dated May 5, 1903. The loom therein shown isprovided with two detecting devices, so that detecting takes place oneach pick in order to insure the operationof the replenishingmechanism,even if an end of filling trails from the shuttle, and also to arresttake-up in such manner that no thin places will be made in the cloth.The operation of the filling-replenishing mechanism is effected uponfilling failure whether the same is detected by either or both of thedetecting devices, thereby obviating any delay in replenishment.

My present invention relates to the same type of loom, and one of theprincipal objects in view is the accomplishment of the resultscontemplated in such-patented structure, but with a much simplermechanism, containing fewer parts, which in themselves are more easilyand cheaply made.

The various novel features of my invention will be fully described inthe subjoined specification and particularly pointed out in thefollowing claims.

Figure l is a top or plan View, centrally broken out, of a portion of anautomatic filling-replenishing loom embodying one form of my presentinvention. Fig. 2 is an enlarged detail, partly in section and partly inside elevation, on theline 2 2, Fig. 1, looking toward the right, of themain filling-detecting means and the parts adjacent thereto shown innormal position. Fig. 3 is asectional view thereof, also enlarged, onthe line 3 3, Fig. 1, but with the weft-hammer and its hook inelevation. Fig. 4 is a similar Vl6W,- but showing the position of theparts after the first outward movement of the main fork-slide to efiectfilling replenishment. Fig. 5 is also a sectional view on the line 3 3,Fig. 1, but with the parts in the relative positions due to a second andsuccessive outward movement of the main forkslide; and Fig. 6 is adetached perspective view of the latch-controllershownin Figs. 3, 4, and5, to be hereinafter referred to.

Referring to Fig. 1', the lay A having th shuttle-boxes B B theautomatically selfthreading shuttle S the filling-replenishing mechanismsupported at the side of the loom adjacent the shuttle-box B andincluding the transferrer f and filling-feeder F to contain a supply offilling-carriers b, the controlling rock-shaft cl, which governs theoperation of the replenishingmechanism, the shipper S, and its notchedholding-plate N, may be and are substantially as shown in the patentreferred to and operate in well-known manner.

I have herein shown two filling-detecting devices at the replenishingand shipping sides of theloom, respectively, the main detecting deviceincluding a filling-fork f, its slide f .longitudinally movable in theguide f secured to the breast-beam A, and a tail f to cooperate in usualmanner with a notch 700 of the hook w on the weft-hammer W, said hookhaving a second notch 800.

Upon absence of filling when the shuttle is in box B, Fig. 1, the slidef 'is moved outward in well-known manner, acting through the head (Z ofan arm 61, fast on the shaft cl, to rock the latter and effect fillingreplenishment.

Such rocking of the shaft d in the direction of arrow 250, Fig. 2,operates through a depending arm d fast on the shaft, to arrest take-up,substantially as provided for in the patent referred to. The otherdetecting device, which for convenience is termed the auxiliaryfilling-detector, is located at the replenishing side of the loom andincludes the filling-fork g, its slide g longitudinally movable in .theguide 9 and the fork-tail g, to be engaged by the hook 'w of theweft-hammer or actuator W when the fork is not tilted to thereby movethe slide outward. At such time the slide engages the upper end (Z of anarm (Z loosely mounted on the rock-shaft d and having some lost motionwith relation thereto, as in Patent No. 7 27 ,014, so that while outwardmovement of the slide g will turn the rock-shaft far enough to arresttake-up it will not turn it far enough to effect operation of thefilling-replenishin g mechanism. Either slide by its outward movementwill thus control the take-up mechanism and arrest its operation; butfilling replenishment can only be effected when the main slide f ismoved outward, as will appear hereinafter. Suitable springs s and 8acting against the outer ends of the fork-slides, serve to move theminward to normal position.

If filling fails on the shot of the shuttle to the box B, the trailingend may be long enough to engage and tilt the fork f, while on the nextpick the fork will detect failure and slide 9" will be moved outward torock the shaft d and swing the arm (Z outward. As will appearhereinafter, such movement of the arm will cause operative movement ofthe main slide f" and effect thereby the operation of the replenishingmechanism; but if initial detection of filling failure is made by themain detector f the subsequent detecting action of the detector Q willbe ineffective so far as concerns the replenishing mechanism.

Referring particularly to Figs. 3, 4L, and 5, the main slide f has across-bar having an inclined upper face and located below upturned earsf", while nearer the outer end the slide is provided with a transverseinclined cam f for a purpose to be described. The outer end of the fixedguide f has a transverse upturned abutment f having a perpendicular rearface f", and its outer face f serves as a stop to limit inward movementof the main slide, as shown in Fig. 3. A controller is mounted on theslide and is shown separately in Fig. 6, said controller comprising abody portion 1, having an upturned lug 2 at its rear end, cam portions3, and a narrower forwardly-extended prolongation 4. An upturned lump orrest 5 is formed on the upper face of the controller about midwaybetween its front and rear ends, and the lower face of the controller isshaped to present two stepped shoulders 6 and 7, while the outer enddownturned V-shaped lug 8. The controller is supported on the cross-barf between the upturned sides of the slide f and normally the inner faceof lug 8 rests upon the outer face 9 of the cam as shown in Fig. 3, sothat the shoulder 6 is held above the top of the abutment f A downturnedreleasinglatch 10 is fulcrumed between the ears f on a pin 11, securedin said ears, the latch being laterally offset to rock in a path outsideof the slide f and in front of the outer end of the guide f and anenlargement of the latchcasting forms a heavy downturned detent 12,provided on its under side with two stepped shoulders 13 and 14:, thetoe 15, adjacent the shoulder 13, normally being supported by the rest5, as shown in Fig. 3. The latch is thereby held up in inoperativeposition with its depending end well above the free end a of a knock-offlever an, fulcrumed at a on the breast-beam A, Fig. 1, the weight of thedetlent and latch both tending to throw the latch own.

The controller is made as a single casting,

and the latch and detent are cast. as a single piece, both ready for usewhen taken from the molds after the usual tumbling operation to whichcastings are generally subjected. The slide f and its guide f are alsocomplete castings, the slide requiring only the attachment of the fork fto complete it.

The shank 16 of the latch-casting and the detent extend through anelongated slot 17 in a rearwardly-extended dog 18, having downturnedcheeks 19, said cheeks entering between the ears f of the slide andhaving upright slots 20, through which extends the pin 11. The dog isprovided with a forwardly-extended and elongated tail 21, whichprojectsabove the slide and is downturned at its outer end at 22 to overhang thehead (Z of the arm 61. Ordinarily the weight of the tail maintains thedog in inoperative position (shown in Figs. 2 and 3) with its rear endabove the path of the shoulder 800 on the hook w, and the upper ends ofthe slots 20 turn on the fulcrum-pin 11 if the dog is rocked or tilted.At such time the low parts of the cam portions 3 of the controller arebeneath the cheeks 19 of the dog and offer no obstruction to tilting ofthe latter.

When the detector f detects filling failure, the hook-shoulder 700engages the tail and outward movement of the slide f is efiected throughthe actuator or weft-hammer WV.

The dog 18 forms an independent connection between the slide and theactuator W, for if the the dog is'tilted to bring its end intoengagement with the shoulder 800 of the hook the slide f X will be movedoutward through the medium of the dog. Such tilting of the latter occursif initial detection of filling failure is made by the detector q, forthen the outward movement of slide g acts, as has been described, toswing the arm d outward, and its head cl engages andlifts the dependingend 22 of the tail 21, depressing the dog to engage the shoulder 800.Thereupon the main slide will be moved outwardand filling replenishingwill be effected. If the initial detection of filling failure is made bythe detector f, however, the replenishing mechanism will be operated andthe detector g will of course detect the absence of fillingon the nextpick when the shuttle is in the box B At such time, however, it would beimproper to cause engagement of the dog with the hook of the weft-hammerW, as such engagement would cause a second replenishing operation whenunnecessary. The first outward movement of the main slide f movesoutwardly the controller until the shoulder 7 thereof engages the rearface of theabutment f such engagement taking place before the slidecompletes its outward movement, and as the slide reaches the limit ofsuch movement the cam f is withdrawn from beneath the lug 8. This isshown clearly in Fig. 4, and at the same time the toe 15 of the detentdrops down ofi the rest 5, bringing the detent-shoulder 13 against theouter transverse wall of the rest. -When the outward movement of thecontroller is stopped, the continued movement of the slide causesthe-cheeks 19 of the dog to ride up on the high parts of the camportions 3, so that the lower ends of the slots 20 become the fulcrum onwhich the dog can tilt.

In Fig. 4: I have shown the dog tilted as it would be by an outwardmovement of the arm (Z, it being manifest that such tilting cannotpossibly effect engagement between the rear end of the dog and the hookw of the wefthammer. Thus the subsequent detection of filling failure bythe fork 9 cannot render the dog operative, inasmuch as the controllerhas made the dog irresponsive to a secondary detecting action by theauxiliary detector.

With the parts in the position shown in Fig. 4 a transfer of filling iseffected when the shuttle is in the box B and if the shuttle threadsproperly upon the shuttle being picked out of the box B the parts willresume their normal position, the spring 8 moving the'slidef inward andthe engagement of the shoulder 13 with the rest 5 will movethecontroller inward with the slide, and at the next outward stroke of theweft-hammer W the controller will be returned to the position shown inFig. 3, the same being the normal position, and of course the fulcrum ofthe dog changesfrom the bottom to the top of the slots 20, the positivemovement of the controller to normal position by or through engagementwith the weft-hammer being of suflicient force to cause the'outer faceof the rest 5 to wipe over the shoulder 13, both being inclined, and tolift the detentto bring the toe 15 onto the top of the rest 5. j

' Were it not for the shifting of the fulcrum of the dog by thecontroller on the first outward movement of the main slide thefillingreplenishing mechanism would operate every time the auxiliarydetector detected absence of filling, it being manifest that theauxiliary controller with it until the slide resumes its normalposition, and then the outer end of the controller drops to bring theshoulder 6 into the path of the abutment f If now the shuttle has failedto properly thread after the first replenishment, the second outwardmovement of the slide, whether it be due to detection of filling failureby one or both of the detectors, will bring the shoulder 6 against therear face of said abutment, holding the controller stationary, while theslide continues to move outward. This outward movement of the slidecarries the detent 12 forward, so that its second shoulder 14 drops infront of the rest 5, the parts then assuming the relative position shownin Fig. 5. This lowering of the detent then causes the latch to dropdown in front of the arm n of the knock-off lever. (Shown in Fig. 1.)The slide then moves back, the controller being moved with it byengagement of the detentshoulder 14: with the rest 5, the latch liftingover the knock-off lever and dropping behind it. If now' there is afailure to thread, there will be a third outward movement of the slide fand the latch. will be moved forward against the arm n, turning theknock-off lever and releasing the shipper from its holding notch to stopthe 100m; but before it stops the replenishing mechanism will beoperated to effect a third filling replenishment. When the weaver hascorrected the fault and started the loom, the first outward movement ofthe Weft-hammer W after the main slide has resumed its normal positionwill act upon the rear end of the controller and restore it to normalposition, the inclined face of shoulder 14 riding up over the outer faceof the rest 5, the shoulder 13 being then similarly lifted, and the lug8 at the outer end of the controller rides up over the cam f and intothe position shown in Fig. 3. The parts are then set, and the engagementof the lug and cam prevent accidental displacement of the controllerthrough jarring of the loom. The upturned lug 2 serves as a stop toprevent accidental withdrawal of the controller in an outward direction.

The dog and its tail are made as a single casting, and it will be seenthat the parts are few in number, direct and positive in theiroperation, and requiring no machining or hand manipulation to completethem other than what is necessary to connect the detector f with itsslide and to mount the fulcrumpin 11 in the ears of the main slide.

The difference in width between the body 1 of the controller and itsprolongation 4 is to cause the controller to conform to the differencein width between the main portion of the slide and the forward endthereof, the latter being reduced in width, as shown in Fig. 1.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism, controlledby or through the slide, a shipper, a releasing-latch therefor pivotallymounted on the slide and having an attached detent, a latch-controllermovable with and also longitudinally of the slide, and a fixed abutment,the latter and the detent cooperating alternately with the controller aplurality of times to effect step-by-step movement thereof relatively tothe slide and thereby position the latch to release the shipper after apredeternliiciiied number of successive movements of the s 1 e.

2. In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism controlledby or through the slide, a shipper, a releasing-latch therefor pivotallymounted on the slide and having an attached detent, provided with aplurality of shoulders, a latchcontroller movable with and alsolongitudinally of the slide and having a shouldered rest on its upperface and a plurality of shoulders on its lower face, and a fixedabutment, the latter and the detent cooperating alternately with thecontroller by the shoulders and the rest thereon to move it step by steprelatively to the slide and thereby position the latch to release theshipper after a predetermined number of successive movements of theslide.

3. In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism controlledby or through the slide, a shipper, a releasing-latch therefor pivotallymounted on the slide and having an attached detent, provided with aplurality of shoulders, a latchcontroller movable with and alsolongitudinally of the slide and having a shouldered rest on its upperface and a plurality of shoulders on its lower face, the rest normallysupporting the detent and maintaining the latch inoperative, and a fixedabutment to cooperate successively with the shoulders on the lower faceof the controller, a predetermined number of successive movements of theslide causing the detent and abutment to change the relative position ofthe controller and thereby withdraw the rest from beneath the detent, toposition the latch to effect release of the shipper on the finalsuccessive movement of the slide.

4:. In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism controlledby or through the slide, a shipper, a releasing-latch therefor pivotallymounted on the slide and having an attached detent, provided with aplurality of stepped shoulders, a latch-controller movable with and alsolongitudinally of the slide and having an upturned rest to engage thedetent, two shoulders on the lower face of the controller, and a fixedabutment to cooperate therewith, a predetermined number of successivemovements of the slide causing the abutment to cooperate successivelywith the shoulders on the controller and the shouldered detent with therest, to move the controller step by step relatively to the slide intoposition to permit the detent to clear the rest and thereby lower thelatch into position to effect release of the shipper.

5. In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism controlledby or through the slide, a shipper, a releasing-latch therefor pivotallymounted on the slide and having an attached detent, pro vided with aplurality of shoulders, a latchcontroller movable with and alsolongitudinally of the slide and havinga shouldered rest on its upperface and a plurality of shoulders on its lower face, a fixed abutment,the latter and the detent cooperating alternately with the controller bythe shoulders and the rest thereon to change the position thereofrelatively to the slide and thereby position the latch to release theshipper after a predetermined number of successive movements of theslide, and a cam on the slide to elevate the outer end of the controllerwhen reset in its normal position with relation to the slide.

6. In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism controlledby or through the slide, a shipper, a downturned releasing-latchtherefor pivotally mounted on the slide and having an integralshouldered detent, a latchcontroller supported by and movable with andalso longitudinally of the slide and shouldered on its lower face, anupturned rest on the controller to normally support the detent andmaintain the latch inoperative, a fixed abutment to cooperatesuccessively with the shoulders on the controller, and a cam integralwith the slide to cooperate with the controller and prevent accidentalmovement thereof and also to position the outer end of the controllerwhen reset.

7 In a loom, a filling-detector, its slide adapted to be moved upondetection of filling failure, filling-replenishing mechanism controlledby or through the slide, a shipper, a

knockoff lever therefor, a latch pivotally mounted on the slide andhaving a detent provided with a series of stepped shoulders, alatch-controller mounted on and having a limited longitudinal movementrelatively to the slide, said controller having an upturned rest tocooperate with the shouldered detent and provided on its under side witha corresponding series of shoulders, a fixed abutment to cooperate withone after another of the shoulders and permit one shoulder after anotherof the detent to cooperate with the rest, a predetermined number ofsuccessive movements of the slide causing the abutment and detent tocooperate with and effect movement of the controller relatively to theslide and likewise gradually lower the latch, the final movement of theslide causing the latch to engage and actuate the knock-off lever torelease the shipper.

8. In a' loom, two filling-detectors, fillingreplenishing mechanismdirectly controlled as to its operation by one detector, means operativeby or through detecting action of the other detector to cause fillingreplenishing through the operation of the first-named detector, saidmeans including a tilting dog, and a device to automatically render thedog irresponsive when the first-named detector has detected fillingfailure.

9. In a loom, main and auxiliary filling-detectors, their slides,filling-replenishing mechanism directly controlled as to its operationby the main detector, means operative by or through detecting action ofthe auxiliary detector to cause filling replenishing through theoperation of the main detector, said means including a dog mounted onthe main detectorslide, and a device operated by movement of said slideto render the dog irresponsive when the main detector has detectedfilling failure.

10. In a loom, main and auxiliary filling-detectors, their slides,filling-replenishing mechanism directly controlled as to its operationby the main detector, means operative by or through detecting action ofthe auxiliary detector to cause filling replenishing through theoperation of the main detector, said means including a dog shiftablyfulcrumed on the main detector-slide, and a controller having a cam tocooperate with the dog and shift its fulcrum when filling failure isfirst detected by the main detector, to thereby render the dogirresponsive when filling failure is thereafter detected by theauxiliary detector.

11. In a loom, main and auxiliary filling-detectors, theirslides,.filling-replenishing mechanism directly controlled as to itsoperation by the main detector, means operative by 'or through detectingaction of the auxiliary detector to cause filling replenishing throughthe operation of the main detector, said means including a dog shiftablyfulcrumed on themain detector-slide, and a controller having a cam,movement of the main slide upon detection of filling failure by the maindetector causing the cam to engage the dog and shift its fulcrum, tothereby render the dog irresponsive to detecting action ofthe auxiliarydetector.

12. In a loom, main and auxiliary filling-detectors, their slides, anactuator for and to operatively move each slide upon detection offilling failure, filling-replenishing mechanism the operation whereof isdirectly controlled by operative movement of the main slide, meansgoverned by the auxiliary detector upon detection thereby of fillingfailure to cause operative movement, by its actuator, of the main slideand effect the actuation of the replenishing mechanism, said meansincluding a dog movable with and also relatively to the main slide, anda controlling device to render the dog irresponsive to detecting actionof the auxiliary detector, operative movement of the main slide upondetection of filling failure by the main detector causing thecontrolling de vice to cooperate with the dog.

13. In a loom, a main filling-detector, its slide, an actuator, to movethe latter by or through said detector upon detection of fillingfailure, a tilting dog shiftably mounted on the slide to form anindependent connection between it and the actuator, said dog having atail which acts to normally maintain the dog inoperative,fillingreplenishing mechanism controlled by or through the slide, anauxiliary filling-detector, means governed by detecting action thereofupon filling failure to act upon the tail and tilt the dog to render itoperative, whereby said slide will be moved to effect the actuation ofthe replenishing mechanism, and a controlling device, moved by the slidewhen the main detector detects filling failure, to engage the dog andshift it relatively to the slide, whereby the dog is renderedirresponsive to subsequent detecting action of the auxiliary detector.

14. In a loom, a main filling-detector, its slide, an actuator to movethe latter by or through said detector upon detection of fillingfailure, a dogshiftably fulcrumed on the slide, and having aforwardly-extended tail, said dog being adapted to cooperate with theactuator, a controlling device to shift the dog on its fulcrum,filling-replenishing mechanism, the aotuation of which is effectedthrough operative movement of the slide, an auxiliary filling-detector,and means governed by detecting action thereof, upon filling failure toengage and lift the tail, and thereby positively cause cooperation ofthe dog and actuator, to effect operative movement of the slide andcause filling replenishing, detection of filling failure by the maindetector moving its slide, and causing the controller to lift and shiftthe dog to prevent subsequent detecting action of the auxiliary detectorfrom tilting the dog into operative engagement with the actuator.

15. In a loom, a shipper, a main filling-detector, its slide, anactuator to move the latter by or through said detector upon detectionof filling failure thereby, a shipper-releasing latch mounted on saidslide, means to render said latch operative when the slide has beenmoved a predetermined number of times in succession, said meansincluding a controller movable with and also longitudinally of the slideand provided with a cam portion, a dog shiftably fulcrumed on the slideand adapted to form an independent connection between it and theactuator, filling-replenishing mechanism the actuation of which iseffected through operative movement of the slide, an auxiliaryfilling-detector, and means governed by initial detecting action thereofto rock the dog into cooperative relation with the actuto thisspecification in the presence of two subscribing witnesses.

EDWARD S. STIMPSON.

Witnesses:

GEORGE OTIS DRAPER, ERNEST W. VVoon.

